The office space, which will be ready for occupation in the autumn, will feature a dedicated reception, open glass atrium, full-height glazing, far-reaching city views and an opportunity to utilise a mezzanine area as part of the layout.

Simon Samuels from Brockton Capital said: "These offices represent a prime opportunity for occupiers to be located in the heart of one of Birmingham's most vibrant mixed-use destinations and we want to ensure that we are fully exploring conversations with possible occupiers from all sectors.

"To that end, we have brought specialist office agent GBR Phoenix Beard on board and, together with CBRE, we have two market-leading agents in place with the extensive experience and industry knowledge required to find the right occupiers for this statement office space.

Among The Mailbox's incumbent tenants are the BBC, Network Rail and Associated Architects.